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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : Knox County
Issued: 5:02 pm CST Dec 26, 2025 Latitude: 40.7861488 Longitude: -90.0842843 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday New Year's Day Friday
Fog on Tonight Morning Fog on Saturday 80% chance of thunderstorms on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday
Low: 40°F High: 54°F High: 60 °F High: 22°F High: 32°F High: 33°F High: 21°F High: 24°F
Low: 56 °F Low: 14°F Low: 13°F Low: 23°F Low: 10°F Low: 6°F  
Fog Morning Fog Thunderstorms Partly Sunny Mostly Sunny Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
GALESBURG - (KGBG)
41°
Feels like 35°F
Cloudy
as of 5:15 PM CST
Rel. Humidity: 100%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
9 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
PEORIA - (KPIA)
46°
Cloudy
as of 4:54 PM CST
Rel. Humidity: 87%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: MVFR
Wind Data
6 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 1100ft
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
45°
Feels like 39°F
Cloudy
as of 5:15 PM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
9 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
43°
Cloudy
as of 5:15 PM CST
Rel. Humidity: 86%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: MVFR
Wind Data
8 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 1100ft
Fog on Tonight Tonight... Patchy dense fog after 8pm. Otherwise, cloudy, with a low around 40. North northwest wind around 6 mph becoming calm.
Morning Fog on Saturday Saturday... Patchy dense fog before 9am. Otherwise, cloudy, with a high near 54. Southeast wind 5 to 11 mph, with gusts as high as 22 mph.
50% chance of thunderstorms Saturday Night Saturday Night... A chance of rain, with thunderstorms also possible after 3am. Cloudy, with a temperature rising to around 56 by 3am. South wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
80% chance of thunderstorms Sunday Sunday... Rain likely and possibly a thunderstorm, then rain after 9am. Temperature rising to near 60 by noon, then falling to around 50 during the remainder of the day. South wind 6 to 11 mph becoming west northwest 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
40% chance of rain, snow, & sleet Sunday Night Sunday Night... A chance of rain before 9pm, then a chance of snow and sleet between 9pm and midnight. Mostly cloudy, with a low around 14. Blustery, with a west northwest wind 21 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.
Partly Sunny on Monday Monday... Partly sunny, with a high near 22. Blustery, with a west northwest wind 20 to 28 mph, with gusts as high as 39 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 13. Northwest wind 9 to 16 mph, with gusts as high as 28 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 32.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 23.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 33.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 10.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 21.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 6.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 24.
Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:23 AM
Sunset: 4:39 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:18 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:18 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.